LONG-TERM VARIATION OF FOG AND MIST IN 1951—2005 IN MAINLAND CHINA
LONG-TERM VARIATION OF FOG AND MIST IN 1951—2005 IN MAINLAND CHINA
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发表时间：
2011
影响因子：
1.2
通讯作者：
Sun Xian
中科院分区：
文献类型：
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作者：
Sun Xian
雾是一种重要的天气标志，通过对1951 - 2005年中国大陆743个地面气象站雾和薄雾资料的分析，揭示了中国大陆雾和薄雾的长期变化趋势。气候上东南部多于西北部，冬半年雾多于夏半年，几十年来，西南地区是全国雾最多的地区，四川盆地一年中有20多天出现雾，严重时，华北、东北平原地区冬春季多持续性大雾，江南地区雾日数明显多于华北地区，20世纪80年代，我国西南地区是全国雾日最多的地区，四川盆地一年中有100多天有雾。
Fog is an important indicator of weather.Long-term trends of fog and mist variation were known by studying meteorological data from 743 surface weather stations in mainland China for the time between 1951 and 2005.For the general geographic distribution of foggy days in mainland China,it is climatologically more in the southeast than in the northwest China and fog appears more in the winter half of the year than in the summer half.Differences are insignificant between decades.Southwest China is the part of the country with the most fog appearance and fog appears on more than 20 days in the year in Sichuan Basin.Serious,persistent heavy fog usually appears in winter and spring over plains in North China and Northeast China.Days with mist are much more frequent in provinces south of the Yangtze River than in those north of it and there is a general increase of misty days after the 1980s.Southwest China is the part of the country where there are most days of mist and Sichuan Basin is misty for more than 100 days in the year.